CN102656960A

CN102656960A - Equipment cabinet

Info

Publication number: CN102656960A
Application number: CN2010800418099A
Authority: CN
Inventors: S·P·雷德肖
Original assignee: 4Energy Ltd
Current assignee: 4Energy Ltd
Priority date: 2009-09-21
Filing date: 2010-09-20
Publication date: 2012-09-05
Anticipated expiration: 2030-09-20
Also published as: CN102656960B; EP2481272A2; WO2011033270A3; GB0916472D0; GB2473647A; GB2473647B; WO2011033270A2

Abstract

An equipment cabinet (100) having an air cooling system comprising: an air inlet (101) extending across an outer wall (102) of the cabinet; an air inlet filter (103) disposed between opposing first and second side panels (104, 105) forming the outer wall of the cabinet; and a fan (106) arranged to draw air through the filter and into an internal volume (107) of the cabinet for cooling equipment (108) contained therein.

Description

Equipment cabinets

Technical field

The present invention relates to a kind of equipment cabinets, it has the air cooling system that is used for apparatus cools that is arranged in the cabinet inside volume.

Background technology

Normally work and safety in order to ensure electronic equipment, especially those electronic equipments that are installed in the outdoor environment, this equipment is installed in the cabinet usually.This cabinet is used in the telecommunication applications usually, and for example mobile communication base station and switching equipment also are used for other outdoor utility, need use with other street furnitures at the traffic signals control cabinet of outside work such as electronic equipment.The design demand of this equipment cabinets adapts to this equipment institute installation environment.

Because electronic equipment can produce heat inevitably when work, therefore need a kind of approach that this heat is discharged from cabinet.This passes cabinet through control air stream usually and accomplishes with cooling device.Can accomplish cooling through making air stream flow directly in the cabinet and flowing out cabinet and flow through, also can carry out indirectly, for example pass through heat exchanger around this equipment.Can also use conditioner, but this has increased volume and the total cost and the operating cost of equipment cabinets significantly, therefore in the time possibly avoiding, avoided as far as possible.

GB2333185 discloses polytype base station apparatus, and wherein mobile telephone equipment is arranged in the cabinet of street corner building article form.Make it pass the inlet grid to get into cabinet and make hot-air pass outlet grid or other openings and flow out and realize cooling outside the cabinet through ordering about air.

GB2354066 discloses a kind of cabinet with heat-sink unit, and it comprises the support that is used to install electronic equipment, also comprises fan unit, is used to order about air and passes this equipment arrival exhaust chamber discharge from plenum chamber.Provide filter on the machine box door, air is driven in the cabinet through this filter.

The force air cooling is carried out in the concentrated equipment cabinets inside that is of the focus of said system.The particular problem relevant with existing system is the air bells laid that gets into the particulate matter of cabinet, and such as earth and dust, these particulate matters can influence the operation of internal unit.Therefore the general air cleaner that uses, this filter is arranged to before the equipment of air bells laid particulate matter arrival cabinet inside, extract at least a portion air bells laid particulate matter.Yet, use air cleaner can occur potential blockage problem inevitably, the air stream that this problem will cause passing cabinet reduces, and the working temperature that has consequently reduced cooling effectiveness, equipment raises.Under opposite extreme situations, plugged sereen will cause equipment to surpass safe working temperature, and this will cause any damage of the automatic close preventing of this equipment or fault.This can cause loss of service, and needs the calling engineer to keep in repair this equipment and change arbitrary plugged sereen.Therefore, in order to reduce equipment fault or inefficacy, can be as far as possible for a long time, under wideer condition of work scope, to keep cooling effectiveness as far as possible be very important.

US 2001/0052412 A1 solves the problem of plugged filter through using air-air heat exchanger, and internal capacity and external environment condition that this air-air heat exchanger is installed equipment are isolated.Do not provide at heat exchanger under the extreme case of enough cooling, second cooling system is started working, and directly passes internal container to impel air, and this second cooling system has filter on air intake, gets into to prevent the air bells laid material.But this solution can only partly solve blocking problem, because still need plugged sereen the most at last.In addition, the heat exchanger cooling that can provide receives the restriction of the required temperature difference.

WO 2009/090405 discloses a kind of air cleaner; Comprise feed tube; This feed tube is formed on the passage that extends between the entrance and exit of air cleaner; And comprise the seta (bristle) that crosses at least a portion extension of passage from carrier wall, from the air that passes this feed tube, to remove the particle of carrying secretly.Such filter has combined seta, substitutes traditional foamed filter element with seta, can reduce and eliminate in some cases the obstruction of filter.This is particularly useful in heat and environment dusty, and the air bells laid particle makes the air stream can not operate as normal under this environment.Yet, work expeditiously in order to make filter, need bigger entrance section long-pending, to reduce the speed of intake air stream, reach the level that seta that entrained particles is filtered device is captured.In equipment cabinets is in the application of form of street furniture, does not select the external filter unit of big volume, because the occupy-place size of cabinet can receive very big restriction, for example receives the restriction of local planning requirement.

Another problem of street corner Application in Building is intentional destruction; It causes the conflict of following two aspects: require on the one hand to guarantee equipment safe enough in the cabinet preventing being damaged (burst accident or other), and guarantee that on the other hand the cooling air of q.s passes cabinet.Being used on this cabinet, the big external grid of improving air stream can become trasher's target, so the outside looks of cabinet need inconspicuous as much as possible.

In order to solve the subject matter of cooling, a solution is the volume that increases the air stream that gets into cabinet.But the speed that increases the air stream that gets into cabinet can cause even more air sedimented particle material, thus the life-span of reducing any inlet filter.Although with regard to short-term is that effectively this solution can cause changing filter more continually inevitably.

Summary of the invention

Therefore the objective of the invention is to solve one or more the problems referred to above.

According to a first aspect of the invention, a kind of equipment cabinets with air cooling system is provided, comprises:

Air intake extends through the outer wall of said cabinet;

The air intake filter is arranged between the first and second relative side panels of the said outer wall that forms said cabinet;

Fan is arranged as the internal capacity that attracts air to pass said filter and get into said cabinet and is contained in this equipment with cooling.

Said air intake filter preferably includes one or more panels, and said panel has the seta array that extends from one or both sides.The type of this panel can be a disclosed type among the WO 2009/090405 for example, comprises plug-in unit, is applied with one deck filtering material on this plug-in unit.

The air intake that gets into cabinet is provided by the slit between the lower edge of said first and second side panels.With this form, air intake is manufactured into least noticeable, and even under normal the observation, also cannot see this inlet.Therefore the inlet of this form helps reducing the risk that is caused damage by intentional destruction.

Equipment cabinets can comprise the pipeline that limits inlet air flow path, and said pipeline is between the bottom of the said internal capacity of the outlet side of said air intake filter and said cabinet.Because filter extends through the outer wall of cabinet; Therefore it helps guiding air to be wandered about as a refugee behind the opened filter down to the bottom of cabinet; Thereby make the cooling effect maximization of the equipment that holds in the cabinet, because the warm air that heat heated that is produced by equipment trends towards rising and ordering about cold air and pass internal capacity.

Equipment cabinets can comprise the first and second said air intakes and the said air intake filter of the relative outer wall that extends through said cabinet.This helps expanding the cross-sectional area of filter, and the shared additional space of filter is minimized.

When on relative outer wall, using two air intake filters; Pipeline can form path between the bottom of the internal capacity of the outlet side of each air intake filter and cabinet; To guarantee that cooling air arrives the bottom of the internal capacity of cabinet, to improve cooling effectiveness.

In order further to improve cooling effectiveness; Especially attracting air to pass under the situation of a fan fails in the inlet filter; Pipeline can be by the spacer separated into two parts; Said spacer will be divided into first and second portion from the air stream of the said first and second air intake filters; This first extends between the bottom of the said outlet side of said first filter and said internal capacity, and this second portion extends between the bottom of the said outlet side of said second filter and said internal capacity.If a fan fails, spacer can guarantee that air still is attracted towards the bottom of internal capacity, rather than flow out cabinet through another filter, can this thing happens when not using this spacer.

The pipeline that between the bottom of the outlet of each filter and internal capacity, extends can advantageously extend through the cabinet outer wall between first and second filters; Make the occupied space of pipeline minimize thus, and make the available space maximization that is used for equipment in the cabinet.

Description of drawings

Now through describing the present invention with reference to accompanying drawing and example:

Fig. 1 is the sketch map that passes the cross section of example devices cabinet;

Fig. 2 a is the sketch map that passes the longitudinal cross-section of another optional example devices cabinet; And

Fig. 2 b is the sketch map that passes the planar cross-sectional of another optional example devices cabinet.

Embodiment

Fig. 1 shows example devices cabinet 100 according to an embodiment of the invention.Cabinet 100 comprises air cooling system; This system comprises the air intake 101 of the outer wall 102 that extends through cabinet 100, and this air intake 101 leads to the inlet filter 103 between the one 104 and the 2 105 side panel of relative formation cabinet 100 outer walls 102.Fan 106 is arranged as the internal capacity 107 that attracts air to pass filter 103 and get into cabinet 100 and is contained in this equipment 108 with cooling.

In Fig. 1, entering is shown, passes and discharges the direction of the air stream of cabinet 100 with arrow 110,111,112,113,114 and 115.Air at first gets into cabinet (arrow 110) through flowing into air intake 101, and the form of this air intake 101 is the lower edge 116 of first and second side panels 104,105, the slit between 117.Aperture plate 118 strides across this slit and is inhaled into filter 103 and protects filter 103 to avoid unexpected or deliberate damage to stop larger object (such as leaf and rubbish).Air stream along sidewall 102 side panel 104, between 105 upwards (arrow 111) pass filter 103.Be inhaled into and pass inlet 101 granular materials and be filtered device 103 and capture.The speed of air stream is preferably enough low, so that this granular materials finally drops on outside the air intake rather than is captured in the filter, thereby reduces the needs to cleaning and replacing.

Aperture plate 118 is preferably firm woven wire, and is preferably with respect to the orientation about vertical direction 45 degree, is limited sidewall 104,105.The lower edge 116 of the first side wall 104 and the small gaps between the aperture plate can reduce the visibility of aperture plate in the normal visual field.

Air be attracted through fan 106 then downwards the pipeline 119 between the bottom of outlet 129 through extending in filter 103 and internal capacity 107 be imported into the bottom of (arrow 112) cabinet.Air 130 flows (arrow 113) along the bottom of cabinet then, preferably, gets into internal capacities 107 (arrow 114) and is positioned at before under the permeable bottom 120 of virtual air passing bottom 120.Pass the equipment 108 that is contained in the internal capacity 107 and on every side after; Air will be heated by the heat that equipment 108 produces; And the overhead 121 of entering cabinet 100; And discharge cabinets 100 (arrow 115) through exhaust outlet 122, this exhaust outlet 122 is placed along the edge of the top layer 123 of cabinet 100 valuably.

The form of filter 103 is a plug-in unit, and this plug-in unit has the seta array that is provided on the two sides.Replacedly, the form of filter 103 is more than one plug-in unit, on the one or both sides of each plug-in unit, provides seta.Preferably, seta is provided by artificial turf layer (layer of artificial turf), and it provides and has allowed air to flow through the characteristic of capturing larger particles simultaneously, otherwise these larger particles will get into and remain in the internal capacity 107.Granular materials very little, for example micron or submicron-scale can pass filter 103, but unlikely can cause equipment 108 to go wrong, because this material generally can pass cabinet 100 always.But in some alternate embodiments, the filter that fine dimension can be provided is to capture this littler particle.

Fig. 2 a and 2b have schematically shown the another exemplary embodiment according to equipment cabinets 200 of the present invention with the vertical and horizontal schematic cross-section respectively.Fig. 2 b representes along the floor map in the cross section of the A-A ' among Fig. 2 a.

Shown in Fig. 2 a; Equipment cabinets 200 has the first air intake 201a and the second air intake 201b; Lead to the first and second air intake filter 203a, 203b respectively; The first and second air intake filter 203a, 203b extend through relative sidewall 202a, the 202b of cabinet 200, and each filter 203a, 203b are between first and second side panels of the relative outer wall 202a that forms cabinet 200,202b.Alternately, in some not preferred device, filter 203a, 203b can place along the non-relative wall of cabinet.

The same with the embodiment shown in Fig. 1, air passes air intake 201a, 201b (arrow 210) flows into cabinet and passes filter 203a, 203b along sidewall 202a, 202b (arrow 211).Pass after fan 206a, the 206b, air flow in the cavity 217.Alternatively, shown in Fig. 2 b, cavity 217 is divided into two

sub-cavity

217a, 217b by spacer 218, and spacer 218 extends to pipeline 219a, 219b, and intake air flows through the bottom of pipeline 219a, 219b arrival cabinet 200.Then; Similar with the mode shown in Fig. 1; Air passes the permeable bottom 220 of air (arrow 214) and gets into internal capacity 207, and the opening 222 on existing internal capacity in the cabinet before passing of rising, the top through internal capacity 207, passes the outlet in the cabinet top layer 223.

Preferably,

fan

206a, 206b are the centrifugal type fan, and air is upwards attracted along the direction that is parallel to fan rotation axis in this fan, and discharges with the direction perpendicular to this, in Fig. 2 b, indicate with arrow 212.

Stream directly flows to another

fan

206b, 206a from fan 206a, a 206b if an inefficacy in the fan, spacer 218 can prevent air, and prevents that the relative excessively air intake of circulation of air from flowing out cabinet 200.Therefore this spacer can guarantee that air flows through internal capacity 207 continuously, if consider that enough safe clearances will be arranged, internal capacity 207 should be able to provide enough cooling air flows, is replaced until the fan that lost efficacy.

Other embodiment are intended to fall in the scope of invention that appending claims limits.

Claims

1. equipment cabinets with air cooling system comprises:

Air intake extends through the outer wall of said cabinet;

2. equipment cabinets according to claim 1, wherein said air intake filter comprises one or more panels, said panel has the seta array that extends from one or both sides.

3. equipment cabinets according to claim 1 and 2 wherein provides air intake by the slit between the lower edge of said first and second side panels.

4. according to the described equipment cabinets of arbitrary aforementioned claim, comprise the pipeline that limits path, said pipeline is between the bottom of the said internal capacity of the outlet side of said air intake filter and said cabinet.

5. according to the described equipment cabinets of each claim among the claim 1-3, comprise the first and second said air intakes and the said air intake filter of the different outer walls that extend through said cabinet.

6. equipment cabinets according to claim 5, wherein said first and second air intakes and air intake filter extend through the relative outer wall of said cabinet.

7. according to claim 5 or 6 described equipment cabinets, comprise the pipeline that limits path, said pipeline is between the bottom of the said internal capacity of the outlet side of the said first and second air intake filters and said cabinet.

8. equipment cabinets according to claim 7; Wherein said pipeline is by the spacer separated into two parts; Said spacer will be divided into first and second portion from the air stream of the outlet side of the said first and second air intake filters; This first extends between the bottom of the said outlet side of said first filter and said internal capacity, and this second portion extends between the bottom of the said outlet side of said second filter and said internal capacity.

9. the equipment cabinets of stating according to Claim 8, wherein said pipe extension are passed the outer wall between said first and second filters of said cabinet.

10. basically so with reference to the described equipment cabinets of accompanying drawing.